Alkali metal storage tube and alkali metal injection device

Abstract

The invention relates to a medical device and specifically discloses an alkali metal storage tube which comprises a sealed tube body and two diaphragms inside the tube body, wherein the tube body is divided by the diaphragms into three chambers and the chambers are used to store an alkali metal fluid and a protection solution; and small holes are formed in the diaphragms, so adjacent chambers communicating with each other. The alkali metal storage tube provided by the invention has the advantages that an injector can suck a tiny amount of protection solution while being drawn out, so the alkali metal fluid in the injector is prevented from making contact with air or water after the injector is drawn out, and a needle head part of the injector is prevented from being stained by the alkali metal fluid. According to the invention, the alkali metal fluid is sealed in the alkali metal storage tube of which two ends are full of the protection solution, so transportation and storage become convenient. A separate protection solution tube is disposed and used for discharge of air in the injection needle. The protection solution tube does not communicate with the alkali metal tube, so air will not enter the alkali metal tube during the course. The invention provides a device and a method which are simple and safe.

Description

technical field [0001] The present invention relates to medical devices, in particular, to alkali metal storage tubes and alkali metal injection devices. Background technique [0002] Alkali metals such as sodium-potassium alloys can be injected into tissues to produce a strong exothermic chemical reaction with the naturally occurring water in the tissues to achieve focal ablation therapy. Due to the violent reaction, only a small amount is needed to achieve efficient thermal ablation. However, it is precisely because of this feature of alkali metal hyperthermia that special attention should be paid to safety in actual operation, and alkali metal fluid should be avoided from contacting air or water when inhaling the syringe and injecting it into the tissue. At present, there are more or less safety problems in the use of traditional syringes, and they cannot be widely used as safe and reliable medical devices. [0003] CN204484292U discloses a disposable squeeze-type alkal...

AI Technical Summary

Problems solved by technology

However, in order to solve the safety problem of alkali metal fluid in contact with air or water, injection control parts are required during use, and the operation is cumbersome

In addition, the protective liquid and the alkali metal fluid placed in the alkali metal storage tube have no isolation structure, and are easy to dissolve each other due to shaking and vibration during transportation

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